I had the same issue e-filing my amended 2022 tax return and agree that it looks like just a function that TurboTax should enable for the convenience of customers.
Let's say no action has been taken and we eventually have to file the amendment through paper filing, how do people locate the state amended tax files through TurboTax? After making all the changes, there are only federal return forms in the preview and final prints. I have state tax that I am due after the amendment, but I can't see those state forms through the preview function at the final step...